JP3169393U - Screw conveyor device - Google Patents

Abstract

A screw conveyor device that facilitates and speeds up cleaning of a long cylinder or screw. A cylindrical body 3 detachably connected to a cylindrical member is supported so as to be rotatable with respect to a support column 2, and a screw 22 is accommodated in the cylindrical body 3 so as to be rotatable about a cylindrical axis. Then, the opening portion of the hopper 26 attached to the lower portion of the cylindrical body 3 faces the lower portion of the screw 22 in the cylindrical body 3, and the screw 22 rotates to be sent from the hopper 26 to the upper portion of the cylindrical body 3. The conveyed object is discharged from the discharge port member 21 provided at the upper end of the cylindrical body 3 to the outside. [Selection] Figure 1

Description

  The present invention relates to a screw conveyor device that conveys a conveyance object thrown into a hopper from, for example, a low place to a high place.

  2. Description of the Related Art Conventionally, belt conveyor devices and chain conveyor devices have been widely used to transport food items such as rice, cereals, seasonings, and the like, and powdery and granular materials such as pharmaceuticals. However, in the conveyance of the powder or granule by the belt conveyor device, a large amount of powder falls at the end of the conveyor, necessitating the nearby dirt and cleaning. Further, there is a disadvantage that it takes time for maintenance such as belt tension adjustment during conveyance, resulting in an increase in equipment cost and management cost. Further, in the chain conveyor device, a device that absorbs the expansion and contraction of the chain is required, and when it is extended, it is necessary to cut the chain.

  On the other hand, there are various screw conveyor devices that convey a conveyance object such as a powder or granular material from a low place to a high place at a low cost without falling off (for example, Patent Document 1). This screw conveyor device comprises a long cylindrical body (casing) provided with a screw provided with screw blades in a spiral shape so as to be rotatable around a cylinder axis. Therefore, in this screw conveyor apparatus, the said conveyance object thrown in from the one end of a cylinder is transferred to the other end of the cylinder by rotation of a screw, and also it can discharge | emit to the exterior of the cylinder.

  By the way, in such a screw conveyor apparatus, when the object to be conveyed is a powdery or granular food or medical product, it is necessary to clean the apparatus every time the object to be conveyed is changed. Usually, the cylinder and the screw are separated (disassembled) from each other so that the washing is sufficiently performed, and the cylinder and the screw are separately performed.

JP-A-6-179517

  However, in such a conventional screw conveyor apparatus, since the total length of the apparatus is as long as 2 to 6 m, for example, and is heavy, it is difficult to separate and clean the cylinder and screw by human power.

  The present invention has been made paying attention to such conventional problems, and its purpose is to enable horizontal support by supporting the cylinder near its center of gravity, and to separate the cylinder from the screw. The cleaning operation can be performed smoothly, and when the cylinder is long and its one end is heavy, the cylinder can be supported horizontally by adjusting the tilt with a manual winch, thereby separating the cylinder and the screw. It is an object of the present invention to provide a screw conveyor device that can facilitate, speed up, and thoroughly clean work and cleaning work.

  In order to achieve the above-described object, a screw conveyor device according to the present invention forms a long cylindrical body by connecting a plurality of cylindrical structural members having a circular cross section, and is directed downward toward the tip of the cylindrical body. A discharge port member is attached and a hopper for supplying an object to be conveyed upward is attached to the base end portion, and a screw for conveying the object to be conveyed while rotating about a cylinder axis is provided in the cylinder. The cylindrical body is supported so as to be tiltable in a vertical direction with respect to a column with a pedestal, and transports an object to be transported that has been thrown into the cylindrical body from the hopper by the rotation of the screw. The outlet member is discharged out of the cylindrical body.

  With this configuration, when cleaning the cylinder and the screw, the cylinder can be tilted by the driving device and supported in the lateral direction, and in this state, the plurality of cylinder components constituting the cylinder are connected to each other. By operating the coupling and the coupler that connects the cylindrical member and the cap, the cylindrical component member and the cap can be separated from each other, and the screw can be removed. By separating the members, it is possible to easily and reliably clean the inner periphery of each separated cylindrical member and the outer periphery of the screw exposed to the outside. At this time, the bearing that rotatably supports the screw shaft can be cleaned at the same time.

  The screw conveyor device according to the present invention is characterized in that the cylindrical body is pivotally supported by the support column in the vicinity of the center of gravity. With this configuration, the tilting operation and horizontal support with respect to the column support can be carried out relatively easily by a manual pushing operation, thereby facilitating the separation (disassembly) operation of the cylinder and screw and ensuring the cleaning. This can be achieved while reducing the work burden on the workers.

  Moreover, the screw conveyor apparatus concerning this invention is supported by the said support | pillar so that the said cylinder can be tilted with a winch. With this configuration, even when the cylinder is too heavy by human power, the tilt adjustment and horizontal support of the cylinder with respect to the support can be easily and lightly implemented.

  Moreover, the screw conveyor apparatus concerning this invention is characterized by the said support | pillar being installed on the said base with the said winch. With this configuration, by moving the pedestal to a designated location, it is possible to continuously carry a conveyance object such as a food or a medicine from the low place to a high place container or the like that is required.

  According to the present invention, it is possible to facilitate and expedite cleaning of a long cylindrical body and screw, and to ensure cleaning.

  The present invention has been briefly described above. The best mode for carrying out the invention described below will be described in detail with reference to the accompanying drawings.

It is a perspective view which shows the screw conveyor apparatus by embodiment of this invention. It is explanatory drawing which shows the rotation condition by the manual winch of the cylinder in FIG. It is a front view which shows the screw conveyor apparatus of the state which supported the cylinder in FIG. 1 horizontally. It is a disassembled side view of the screw conveyor apparatus shown in FIG.

  Hereinafter, a screw conveyor device according to an embodiment of the present invention will be described with reference to the drawings.

  The screw conveyor apparatus of this embodiment shown in FIGS. 1 to 4 is composed of a plurality of cylindrical structural members that can be connected and separated, and a cylindrical body that is supported so as to be tiltable in the vertical direction with respect to the support column, and a motor And the like, and a screw accommodated in the cylinder so as to be rotatable about a cylinder axis, a hopper attached to a base end portion of the cylinder and supplying a conveyance object into the cylinder, and the cylinder And a discharge port member for the transport object provided at the tip of the body. A conveyance object transferred from the hopper to the cylinder by the rotation of the screw is configured to be discharged out of the cylinder from the discharge port member.

  Thus, during the cleaning operation, the cylindrical body is operated in the lateral direction by the operation of the driving device, and the plurality of cylindrical body constituent members constituting the cylindrical body, or the connecting member for connecting the cylindrical body constituent member and the cap are connected. By performing the release operation, each of the cylindrical component members and the cap can be easily separated from each other, and the separated cylindrical component members are separated by independently separating the screw from these cylindrical component members. The screw whose inner periphery and outer periphery are exposed to the outside can be cleaned individually and reliably.

  The screw conveyor device according to the present embodiment is specifically configured by attaching a cylindrical body 3 on a support column (support column with a pedestal) 2 established on a movable carriage 1. The movable carriage 1 is made of, for example, a steel frame assembled in a rectangular frame shape, and casters 5 with stoppers 5a are attached to the four corners of the lower surface of the rectangular frame 4 as shown in FIG. These casters 5 enable the movable carriage 1 to smoothly travel on the floor or road surface, and the movable carriage 1 can be stopped at a predetermined traveling (moving) position by rotating the stopper 5a. Each caster 5 is provided with a rubber ring on the peripheral surface as necessary for noise countermeasures.

  Further, as the steel material constituting the rectangular frame 4, a well-known square pipe, C-shaped steel, L-shaped steel, I-shaped steel or the like is used, and a heavy object such as a cylinder 3, a screw, a hopper, or a motor, which will be described later, can be safely used. A material having a strength that can be supported on the surface is selected and used. A reinforcing frame 6 is connected between a pair of left and right rectangular frames 4 and 4 (a pair of front and rear in FIGS. 1 to 4) constituting the rectangular frame 4. The support column 2 is erected in the vertical direction. An unequal angle measuring plate 7 is connected to the column 2 in the vertical direction by welding or bolting.

  A support shaft 9 that rotatably supports the cylindrical body support member 8 is attached to the upper portion of the angle measurement plate 7 by bolts and nuts (not shown). Here, the cylindrical body supporting member 8 as a whole is composed of, for example, a band-shaped metal plate that is curved in an Ω-shape, and is supported so as to wrap the cylindrical body 3 in an arc portion 8a that forms the Ω-shape portion. Narrow flat portions 8b extending to both ends of the portion 8a are joined to each other so as to be openable and closable. By passing the support shaft 9 through mounting holes (not shown) formed in these flat portions 8 b, the cylindrical body support member 8 that supports the cylindrical body 3 can rotate around the support shaft 9. Become.

  As shown in FIG. 2, the angle measuring plate 7 is formed with an arc groove hole 10 at a predetermined radius position around the support shaft 9 over a predetermined length. A scale 11 is displayed by printing or the like so as to follow the arc slot 10 at a radial position in the direction. Further, a pin hole 12 as shown in FIG. 1 is provided between the support shaft 9 and the arc groove 10 of the angle measuring plate 7. Further, pin holes 13 are also formed in the flat plate portion 8b of the cylindrical body supporting member 8, and fixing pins 14 are detachably inserted into these pin holes 12, 13 as shown in FIGS. Thus, the cylindrical body 3 can be stably supported with respect to the support column 2 in a horizontal state.

  The fixing pin 14 has an outer diameter and a length that can be simultaneously inserted into the pin holes 12 and 13, and is attached to one end of the chain 15 as shown in FIGS. The other end of the chain 15 is fixed to a part of the support 2 to prevent the fixing pin 14 from being lost.

Further, a shaft through hole (not shown) is provided at a portion of the cylindrical body support member 8 corresponding to the arc groove hole 10 of the angle measurement plate 7, and the angle measurement plate 7 is passed through the shaft hole and the arc groove hole 10. A bolt shaft portion 17 as shown in FIG. 2 is inserted from the back side of the bolt, and the bolt shaft portion (screw portion) 17 projecting through the shaft through hole to the front side of the cylindrical body support member 8 has a rod shape. An integral nut portion 18 is screwed to the end of the handle 16. The arc groove 10, the shaft through hole (not shown), the handle 16, the bolt shaft 17 and the nut 18 constitute an angle adjusting mechanism A of the cylinder 3.

  Accordingly, the handle 16 is operated at a predetermined rotational operation position of the cylindrical body 3, and the nut portion 18 is firmly screwed into the bolt shaft portion 17 so as to be interposed between the bolt shaft portion 17 and the nut portion 18. By increasing the contact pressure (friction pressure) between the angle measurement plate 7 and the cylindrical body maintaining member 8, the rotation angle of the cylindrical body supporting member 8 can be maintained. The rotation angle can be confirmed by reading the scale 11 on the angle measurement plate 7 facing the tip of the cylindrical body support member 8.

  As shown in FIG. 4, the cylindrical body 3 includes a plurality of cylindrical constituent members, here, three cylindrical constituent members 3 a, 3 b, 3 c having the same diameter and a cap 19 by three connecting tools 20. Consists of separable connections. In addition, it is preferable to connect two to four cylindrical component members, although depending on the height. Further, the lengths of the cylindrical member 3a, 3b, 3c are not necessarily the same. Each connecting tool 20 is composed of a band 20b of a tightening type formed by a knob 20a. The cylindrical members 3a, 3b, 3c adjacent to each band 20b and each end part (connecting part) of the cap 19 are encased. By rotating them, they can be connected to each other to form a single cylinder 3. The cap 19 is provided with a bearing (not shown) that rotatably supports one end (upper end) of a screw shaft, which will be described later, and a predetermined length is provided at the end of the cylindrical member 3a to which the cap 19 is attached. A discharge pipe (discharge port member) 21 for conveying objects is continuously provided in a predetermined direction.

  A screw 22 which is a main component of the screw conveyor device is accommodated in the cylinder 3 so as to be rotatable about a cylinder axis. The screw 22 has a spiral screw blade 22a as shown in FIG. 4 attached around the screw shaft 22b. As shown in FIG. 2, the screw shaft 22b of the screw 22 is rotatably supported by the bearing of the bearing 19 of the cap 19 as described above, and the other screw shaft 22b closes the other end (lower end) of the cylindrical body 3. It is rotatably supported by a bearing (not shown) of the cap 23.

  The screw shaft 22 b supported by the bearing is further connected to the output shaft of the speed reducer 24, and the output shaft of the motor 25 is connected to the input shaft of the speed reducer 24. Accordingly, the screw 22 rotates in the cylinder 3 through the speed reducer 24 by driving the motor 25, and the screw blade 22a moves the object to be conveyed from the base end (lower end) side to the tip end (upper end) side. Function to transport to.

  Further, as shown in FIG. 3, a hopper 26 for carrying the object to be conveyed is attached to the outer periphery of the end portion (right end portion in the figure) of the cylindrical member 3c, and the lower end portion of the hopper 26 is a cylinder. It faces one end of the screw 22 through a through hole (not shown) penetrating the body constituent member 3c. Accordingly, when the motor 25 is driven and the object to be conveyed is put into the hopper 26, the object to be conveyed is fed into the cylindrical member 3c through the through-hole, and the screw blade 22a of the screw 22 It is transferred to the middle upper side (left side) and discharged (discharged) from the discharge port member 21 at the tip of the cylindrical member 3a.

  On the other hand, a winch mounting column 27 is established on the rectangular frame 4 of the movable carriage 1 and is connected to the support column 2 via a horizontal reinforcing rod 28. A manual winch 29 is attached to the winch mounting column 27 using bolts, nuts, or the like. Further, a control panel 34 having a control circuit for controlling the operation of the winch 29 and the motor 25 is installed in the vicinity of the winch. As shown in FIG. 2, the punch 29 functions to wind up and rewind a handle 30 and a wire rope 31 wound around a drum (not shown) by operating the handle 30. Among these, the wire rope 31 is fixed to the lower part (end part on the motor attachment side) of the cylindrical body 3 via a pulley 32 attached to the lower surface of the reinforcing frame 6. Accordingly, the winch 29 can adjust the winding amount of the wire rope 31 around the drum by the turning operation of the handle 30. As a result, the inclination of the cylindrical body 3 on which the cap 19 is attached is heavier than the motor installation side can be easily adjusted, and the position thereof can be maintained.

  The screw conveyor device having such a configuration moves the movable carriage 1 to the conveyance site when the conveyance object is conveyed (transferred) from a base end portion, for example, a low place on the ground to a predetermined high place. The movement of the movable carriage 1 is performed by a caster 5 provided on the movable carriage 1 traveling on a floor surface or a road surface. The traveling of the movable carriage 1 can be performed by human power or using a motor or an engine (not shown). When the screw conveyor device arrives at the transfer site due to the movement of the carriage, the stopper 5a is operated to lock the rotation of the caster 5, and the movement of the movable carriage 1 is stopped.

  Further, before and after the movement of the screw conveyor device, the drum of the winch 29 is rotated by the operation of the handle 30, and the wire rope 31 is wound or rewound on the drum by a predetermined amount. As a result, the cylindrical body 3 is tilted by an angle corresponding to the winding or unwinding of the wire rope 31 and can be maintained in a predetermined tilt or horizontal state. Therefore, the cylindrical body 3 can be inclined as shown in FIG. 1, for example, so that the motor 25 side is in the lower position and the cap 19 side is in the upper position.

  In general, the conveyor device is long because it conveys the object to be transported to a distant position, and in this embodiment, the proximal end side of the cylindrical body 3, that is, the installation side of the cap 19, becomes weight compared to the installation side of the motor 25. Therefore, the work load for lifting the cap 19 side by hand increases, and particularly when the diameter of the cylinder 3 is large, it is difficult to lift. However, the winch 29 can easily adjust the inclination of the cylinder 3 to an arbitrary angle while supporting the heavy cylinder 3 and the screw 22 via the wire rope 31, and stably maintains the adjustment angle. enable.

  The cylinder 3 is tilted by the rotation of the cylinder support member 8 around the support shaft 9 on the angle measuring plate 7, and the rotation angle is determined by the tip of the cylinder support member 8 or the end of the cylinder support member 8. This can be easily confirmed by reading the scale 11 indicated by a pointer (not shown) provided at the tip. Further, when the rotation angle is once set, the cylindrical body support member 8 is strongly pressed against the angle measurement plate 7 by the rotation support of the handle 16, so that the cylindrical body 3 is set to the set angle. Can be held.

  In this case, when a fulcrum is provided near the center of gravity of the entire cylindrical body 3, that is, by supporting the vicinity of the center of gravity of the cylindrical body 3 with the support shaft 9, a horizontal balance around the support shaft 9 of the cylindrical body 3 can be obtained. . For this reason, the tilting operation of the cylinder 3 by human power can be performed without depending on the operation of the winch 29. When the diameter of the cylinder is small and short, the fulcrum is close to the center of gravity, so that the tilting operation by human power is easy.

  Moreover, when changing conveyance objects, such as foodstuffs and chemicals by a screw conveyor apparatus, it is necessary to wash | clean the said cylinder 3 and the screw 22. FIG. For this reason, in the state where the cylindrical body 3 is operated and supported horizontally on the support column 2 as described above, the connecting member 20 that connects the cylindrical structural members 3a, 3b, 3c and the cap 19 is removed. The cylindrical member 3a, 3b, 3c and the cap 19 are sequentially removed so as to be removed from the screw 22 from the cap side. In this detaching operation, the cap 19 and the two cylindrical member 3a and 3b are separated, and then sequentially pulled out from the screw 22 whose end is supported in the cylindrical member 3c on the support column 2. Thereafter, the screw 22 is extracted from the cylindrical member 3c. Thereby, each of the cylindrical member 3a, 3b, the cap 19 and the screw 22 can be cleaned independently.

  On the other hand, the cylindrical member 3c is inclined at a predetermined angle while being supported by the support column 2, and the inside is cleaned by pouring a cleaning liquid from one end thereof or the hopper 26, for example. The cleaning liquid remaining at the end portion of the cylindrical member 3 c by this cleaning is provided at this end portion and is discharged outside from the drain passage 33. Thus, the cylinder 3 and the screw 22 can be cleaned quickly and easily by separating the cylinder constituent members 3a, 3b, 3c and the cap 19. In addition, after washing | cleaning, if each cylinder structural member 3a, 3b, 3c and the cap 19 are mutually connected using the said connector 20, after inserting the screw 22 in these, screws as shown in FIG. The conveyor device can be easily assembled.

  As described above, according to the present embodiment, the cylindrical body 3 detachably connected to the plurality of cylindrical body constituent members 3a, 3b, and 3c is supported so as to be rotatable in the vertical direction with respect to the support column 2. And a screw 22 that rotates within the cylinder 3 around the cylinder axis by a motor 25 or the like, conveys a conveyance object placed in a hopper 36 attached to the lower part of the cylinder 3, and The discharge port member 21 provided at the upper end of the body 3 is discharged from the cylinder.

  Thereby, by operating the coupling member 20 that connects the cylindrical body constituting members 3a, 3b, and 3c and the cap 19 to each other, the plurality of cylindrical body constituting members 3a, 3b, and 3c constituting the cylindrical body 3 during the cleaning operation The cylindrical member 3a, 3b, 3c and the cap 19 can be separated from each other, and the screw 22 is separated by independently separating the cylindrical member 3a, 3b, 3c. The inner periphery of each cylindrical member 3a, 3b, 3c and the screw 22 whose outer periphery is exposed to the outside can be cleaned individually and reliably.

1 Mobile trolley (pedestal)
2 pillars 3 cylindrical bodies 3a to 3c cylindrical body constituting members 4 rectangular frames 5 casters 6 reinforcing frames 7 angle measuring plates 8 cylindrical body supporting members 9 support shafts 10 arc groove holes 11 scale plates 12, 13 pin holes 14 fixing pins 15 chains 16 Handle 17 Shaft 18 Nut 19 Cap 20 Connector 20a
20b Band 21 Discharge port member 22 Screw 22a Screw blade 22b Screw shaft 23 Cap 24 Reduction gear 25 Motor 26 Hopper 27 Winch mounting column 28 Reinforcement rod 29 Winch 30 Handle 31 Wire rope 32 Pulley 33 Drain passage 34 Control panel

Claims (4)

A plurality of cylindrical structural members having a circular cross section are connected to form a long cylindrical body, a discharge port member is attached downward to the distal end portion of the cylindrical body, and an object to be conveyed is directed upward to the base end portion. A hopper for supplying the hopper is provided, and the cylinder is provided with a screw that conveys the conveyance object while rotating about a cylinder axis.
The cylindrical body is supported by a column with a pedestal so as to be tiltable in a vertical direction,
A screw conveyor device that transports an object to be transported that has been thrown into the cylinder from the hopper by rotation of the screw, and discharges the object to the outside of the cylinder from the discharge port member.   The screw conveyor device according to claim 1, wherein the cylindrical body is pivotally supported by the support column in the vicinity of the center of gravity.   The screw conveyor device according to claim 1, wherein the cylindrical body is supported by the support column so as to be tiltable by a winch.   The screw conveyor device according to any one of claims 1 to 3, wherein the support column is installed on the base together with the winch.

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